How to add a callback function to an asynchronous job in powershell and get return data

Question

I\'ve been searching around the internet and combining lots of different pieces of code, but I\'m just not succeeding at creating a callback for my asynchronous job.

Answer 1

Try this one!

`

$rsPool = [runspacefactory]::CreateRunspacePool(1,2)
$rsPool.Open();

$WebRequest = {
    param($url)
    return Invoke-WebRequest -Uri ($url)
}


$jobs = @()

$PSinstance = [powershell]::Create();
$PSinstance.AddScript($WebRequest).AddArgument("https://google.com")
$PSinstance.RunspacePool = $rsPool
$Jobs += [PSCustomObject]@{ Pipe = $PSinstance; Status = $PSinstance.BeginInvoke() }

$results=@()
while ($Jobs.Status -ne $null)
{
    start-sleep -s 1
    write-host "." -nonewline -fore cyan
    foreach ($completedjob in $Jobs|?{ $_.Status.IsCompleted -eq $true })
    {
        $results+=$completedjob.Pipe.EndInvoke($completedjob.Status)
        $completedjob.Status = $null
    }
}

$rsPool.close();

$results|out-host

`